SO apparently if you add enough instant coffee to make it taste like a "strong" cup of coffee... its gonna contain way more caffiene than you expected. Didn't realize it until my hands wouldn't stop jittering.
It actually tastes pretty good but yeah. Don't be like me. Looks like I'm definitely staying up until midnight.
Drink a bunch of water, eat fiibre rich food to keep digestion and metabolism rockin and just like, do some pushups or jumping jacks to burn off energy.
To quote St Anger "Just flush it out"